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. 2020 Feb 28;17(5):1562. doi: 10.3390/ijerph17051562

Table 4.

Comparison between gamers with Internet Gaming Disorder (IGD) (endorsing five or more criteria) versus those endorsing four criteria or fewer with respect to the five dimensions of the KIDSCREEN-27.

Instrument n (< 5 symptoms) M ± SD (< 5 symptoms) n (≥ 5 symptoms) M ± SD (≥ 5 symptoms) Mann-Whitney U (p) Effect Size (Hedges’ g)
KD Phy-Wb 341 45.40 ± 11.39 7 33.92 ± 10.51 2.529 (.011) 1.00
KD Psy-Wb 341 46.70 ± 9.47 7 38.00 ± 8.88 2.370 (.018) 0.92
KD A and Pr 341 48.51 ± 10.91 7 39.75 ± 21.70 1.749 (.080) 0.78
KD SS and P 341 50.97 ± 11.31 7 37.81 ± 20.06 1.988 (.047) 1.14
KD SE 341 46.19 ± 9.10 7 42.31 ± 13.26 2.076 (.038) 0.42

Note: n (< 5 symptoms): participants with fewer than four problem criteria/items; n (≥ 5 symptoms): participants with four or more problem criteria/items; KD Phy-Wb = Physical well-being; KD Psy-Wb = Psychological well-being; KD A and Pr = Autonomy and relations with parents; KD SS and P = Social Support and Peers; KD; SE = School Environment; M = arithmetic mean; SD = standard deviation.